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Mathematics, 15.04.2021 23:00 hurie98

Jessica had 3 times as many postcards as Antonio. After Jessica gave 30 postcards to her friend and Antonio received 15 more postcards from his friend, Antonio had 3/4 as many postcards as Jessica. How many postcards did they have altogether in the beginning? PLS HELP. WILL GIVE BRAINLIEST. SHOW YOUR WORK TOO, PLS.

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Jessica had 3 times as many postcards as Antonio. After Jessica gave 30 postcards to her friend and...
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